fix(cmd/paratime): Revamp paratime stats

[peternose]

Changes:

• Removed primary invoked statistics as primary workers are expected to be continuously active.
• Introduced new statistics to monitor node's block proposals as primary or backup proposer.
• Reorganized columns and sorted rows within the entity statistics table to improve clarity.
• Fixed a bug that led to inaccurate statistics when the discrepancy event for the first finalized block occurred before the start block.
• Resolved a bug that caused events from the start block to be skipped.

Testmet, sapphire:

./oasis paratime statistics 18049000 18049010

Before (10 != 9):

|                  ENTITY ADDR                   |   ENTITY NAME    | ELECTED | PRIMARY | PRIMARY INVOKED | PRIMARY GOOD COMMIT | PRIM BAD COMMMIT | PRIMARY MISSED |
|------------------------------------------------|------------------|---------|---------|-----------------|---------------------|------------------|----------------|
| oasis1qrruwg0y4au55efu0pcgl0nanaq6p3sdwv0jhzv5 | Dobrynya Hukutu4 |      10 |      10 |               9 |                   8 |                0 |              1 |

After:

|                  ENTITY ADDR                   |   ENTITY NAME    | ELECTED | PRIMARY | PRIM GOOD COMMIT | PRIM BAD COMMMIT | PRIM MISSED |
|------------------------------------------------|------------------|---------|---------|------------------|------------------|----------------|
| oasis1qrruwg0y4au55efu0pcgl0nanaq6p3sdwv0jhzv5 | Dobrynya Hukutu4 |      10 |      10 |                9 |                0 |              1 |

Before:

|                  ENTITY ADDR                   |   ENTITY NAME    | PROPOSER |
|------------------------------------------------|------------------|----------|
| oasis1qrruwg0y4au55efu0pcgl0nanaq6p3sdwv0jhzv5 | Dobrynya Hukutu4 |        2 |

After:

|                  ENTITY ADDR                   |   ENTITY NAME    | PRIMARY PROPOSER | PRIM PROPOSED | BCKP PROPOSED |
|------------------------------------------------|------------------|------------------|---------------|---------------|
| oasis1qrruwg0y4au55efu0pcgl0nanaq6p3sdwv0jhzv5 | Dobrynya Hukutu4 |                2 |             2 |             0 |